Carl Sagan and Frank Drake were pivotal to the development of the Search for Extraterrestrial Intelligence (SETI) and Messaging Extraterrestrial Intelligence (METI), as exemplified by the Pioneer Plaques and Voyager Golden Records.
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Learn about the Drake Equation, Frank Drake's formula for estimating the number of communicating alien civilizations in our galaxy, and what modern science says.
The best science books on alien life: Carl Sagan, Avi Loeb, Adam Frank, Lisa Kaltenegger, Arik Kershenbaum, and the Fermi paradox surveys that ask where everybody is.
Learn about SETI, the scientific effort to detect intelligent alien life through radio signals and other methods, including its history, technology, and findings.
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